542571187 has 2 divisors, whose sum is σ = 542571188. Its totient is φ = 542571186.

The previous prime is 542571109. The next prime is 542571191. The reversal of 542571187 is 781175245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 542571187 - 2¹⁹ = 542046899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (542571287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271285593 + 271285594.

It is an arithmetic number, because the mean of its divisors is an integer number (271285594).

Almost surely, 2^542571187 is an apocalyptic number.

542571187 is a deficient number, since it is larger than the sum of its proper divisors (1).

542571187 is an equidigital number, since it uses as much as digits as its factorization.

542571187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78400, while the sum is 40.

The square root of 542571187 is about 23293.1575146007. The cubic root of 542571187 is about 815.6156974458.

The spelling of 542571187 in words is "five hundred forty-two million, five hundred seventy-one thousand, one hundred eighty-seven".